fix: correct CSS module import paths after file renames (Task 4.4)

- Fix incorrect relative paths in feature components after directory restructure
- Components in features/{domain}/ were importing ./features/{domain}/X.module.css
  instead of ./X.module.css
- Affected: AppShell, GitToolbar, FileEditor, CommitDialog, CommitPanel,
  MergeDialog, SettingsTabLayout, InstanceList, TerminalComponent

Quality gates: tsc (pass), eslint (pass), build (pass)
Refs: repo-restructure Task 4.4

apps/web/src/components/features/git/CommitDialog.tsx

@@ -1,4 +1,4 @@
-import styles from "./features/git/CommitDialog.module.css";
+import styles from "./CommitDialog.module.css";
 import React, { useState } from "react";
 
 import { Icon } from "../../ui/Icon";

apps/web/src/components/features/git/CommitPanel.tsx

@@ -1,7 +1,7 @@
 import { useState } from "react";
 
 import { commitChanges } from "../../../api/git-repositories";
-import styles from "./features/git/CommitPanel.module.css";
+import styles from "./CommitPanel.module.css";
 
 interface CommitPanelProps {
 	projectId: string;

apps/web/src/components/features/git/FileEditor.tsx

@@ -1,4 +1,4 @@
-import styles from "./features/git/FileEditor.module.css";
+import styles from "./FileEditor.module.css";
 import React, { useCallback, useEffect, useState } from "react";
 import { useSearchParams } from "react-router-dom";
 import { apiClient } from "../../../api/client";

apps/web/src/components/features/git/GitToolbar.tsx

@@ -11,7 +11,7 @@ import {
 } from "../../../api/git-repositories";
 import { Icon } from "../../ui/Icon";
 import { MergeDialog } from "./MergeDialog";
-import styles from "./features/git/GitToolbar.module.css";
+import styles from "./GitToolbar.module.css";
 
 interface GitToolbarProps {
   projectId: string;

apps/web/src/components/features/git/MergeDialog.tsx

@@ -1,4 +1,4 @@
-import styles from "./features/git/MergeDialog.module.css";
+import styles from "./MergeDialog.module.css";
 import { useState } from "react";
 
 import { mergeBranches } from "../../../api/git-repositories";

apps/web/src/components/features/session/InstanceList.tsx

@@ -13,7 +13,7 @@ import {
 	startInstance,
 	stopInstance,
 } from "../../../api/sessions";
-import styles from "./features/session/InstanceList.module.css";
+import styles from "./InstanceList.module.css";
 
 const API_BASE_URL =
 	import.meta.env.VITE_API_BASE_URL ?? "http://localhost:8000";

apps/web/src/components/features/settings/SettingsTabLayout.tsx

@@ -1,6 +1,6 @@
 import React from "react";
 import { Link, useLocation } from "react-router-dom";
-import styles from "./features/settings/SettingsTabLayout.module.css";
+import styles from "./SettingsTabLayout.module.css";
 
 interface Tab {
 	id: string;

apps/web/src/components/features/terminal/TerminalComponent.tsx

@@ -10,7 +10,7 @@ import type {
 	ServerControlMessage,
 	TerminalConnectionState,
 } from "../../../types/terminal";
-import styles from "./features/terminal/TerminalComponent.module.css";
+import styles from "./TerminalComponent.module.css";
 
 interface TerminalProps {
 	instanceId: string;